Elements in Group 18

 
4.3  Elements in Group 18
 
This image shows a diagram of elements in Group 18 of the periodic table. The elements are arranged in a flower-like pattern with a central circle labeled ‘ELEMENTS IN GROUP 18.’ The petals around the central circle are labeled with the names and symbols of the elements: Radon (Rn), Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), and Xenon (Xe). The background is white, and the diagram has a clean, simple design. The logo ‘Pandai’ is at the bottom right corner.
 
Elements in Group 18
  • Also known as inert gases or noble gases.
  • Can be found at the far-right column of the Periodic Table.

This image shows a simplified periodic table of elements. The table is highlighted in light blue, and only the noble gases are filled in. These noble gases, located in the far-right column, include Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn), and Oganesson (Og). The rest of the table is empty with outlined boxes.

 
Physical Properties
  • Insoluble in water.
  • Does not conduct electricity.
  • Does not conduct heat.
  • The boiling and melting point is increasing down the group.
  • The van der Waals forces are increasing when the size of the atoms increases.
 
Chemical Properties
  • Does not react with other elements.
  • Exists as a monatomic (single atom). 
  • Inert gases are non-reactive because the valence shell is full.
  • For example, helium has a stable duplet electron arrangement, because the number of valence electrons is two.
  • The other elements in Group 18 have a stable octet electron arrangement because the number of valence electrons is eight.
  • Noble gas did not accept or donate electrons as it is already stable.
 
Uses of Group 18 Elements
Element Uses
Helium
  • Used to fill weather balloons
  • Used in the oxygen tanks of divers
Neon
  • Used in advertising board lights
Argon
  • • Used to fill in electric bulbs
  • Used to provide an inert atmosphere for welding in high temperature
Krypton
  • Used in flashlight of cameras
  • Used in lasers for eye retina treatment
Xenon
  • Used in lighthouse lamps
  • Used for anesthesia
Radon
  • Used to treat cancer
 

 

 

 

 

Elements in Group 18

 
4.3  Elements in Group 18
 
This image shows a diagram of elements in Group 18 of the periodic table. The elements are arranged in a flower-like pattern with a central circle labeled ‘ELEMENTS IN GROUP 18.’ The petals around the central circle are labeled with the names and symbols of the elements: Radon (Rn), Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), and Xenon (Xe). The background is white, and the diagram has a clean, simple design. The logo ‘Pandai’ is at the bottom right corner.
 
Elements in Group 18
  • Also known as inert gases or noble gases.
  • Can be found at the far-right column of the Periodic Table.

This image shows a simplified periodic table of elements. The table is highlighted in light blue, and only the noble gases are filled in. These noble gases, located in the far-right column, include Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn), and Oganesson (Og). The rest of the table is empty with outlined boxes.

 
Physical Properties
  • Insoluble in water.
  • Does not conduct electricity.
  • Does not conduct heat.
  • The boiling and melting point is increasing down the group.
  • The van der Waals forces are increasing when the size of the atoms increases.
 
Chemical Properties
  • Does not react with other elements.
  • Exists as a monatomic (single atom). 
  • Inert gases are non-reactive because the valence shell is full.
  • For example, helium has a stable duplet electron arrangement, because the number of valence electrons is two.
  • The other elements in Group 18 have a stable octet electron arrangement because the number of valence electrons is eight.
  • Noble gas did not accept or donate electrons as it is already stable.
 
Uses of Group 18 Elements
Element Uses
Helium
  • Used to fill weather balloons
  • Used in the oxygen tanks of divers
Neon
  • Used in advertising board lights
Argon
  • • Used to fill in electric bulbs
  • Used to provide an inert atmosphere for welding in high temperature
Krypton
  • Used in flashlight of cameras
  • Used in lasers for eye retina treatment
Xenon
  • Used in lighthouse lamps
  • Used for anesthesia
Radon
  • Used to treat cancer